Condensate recovery units must match peak return flow, condensate temperature and discharge pressure; the wrong receiver or pump can overflow, cavitate or waste recoverable heat.
YONGFAN JFLN Condensate Recovery Units combine pressurized collection vessels, anti-cavitation suction geometry, specialized high-temperature pumps (up to 150–180 °C), and automatic level control across 10 standard sizes.
Batch processes and simultaneous trap discharges create sharp short-term peak return surges. Sizing on daily average flow causes receiver overflow.
Pumps handling 40 °C water cavitate destructively on 120–150 °C condensate without specialized mechanical seals and suction pressure boosting.
JFLN does not replace upstream steam traps. Steam traps remain at each individual process heat exchanger to discharge condensate into the return header.
Process leaks can contaminate returned condensate. Critical duties require conductivity monitoring and automated dump valves upstream of JFLN.
| Model | Approx. Nominal Capacity | Condensate Inlet D₁ | Discharge Outlet D₂ |
|---|---|---|---|
| JFLN-1 | 1 t/h | DN50 | DN40 |
| JFLN-2 | 2 t/h | DN65 | DN50 |
| JFLN-4 | 4 t/h | DN80 | DN65 |
| JFLN-6 | 6 t/h | DN80 | DN80 |
| JFLN-10 | 10 t/h | DN100 | DN80 |
| JFLN-20 | 20 t/h | DN125 | DN100 |
| JFLN-35 | 35 t/h | DN150 | DN125 |
| JFLN-50 | 50 t/h | DN200 | DN150 |
| JFLN-75 | 75 t/h | DN200 | DN150 |
| JFLN-100 | 100 t/h | DN225 | DN175 |
*Inlet D1 is sized larger to accommodate two-phase return flow; outlet D2 is sized for pumped liquid delivery.
Maintains internal receiver pressure relative to condensate saturation temperature, preventing flash steam from venting to atmosphere and preserving thermal energy.
Internal vessel baffles and specialized suction geometry minimize local velocity heads and friction drops right before the pump impeller eye.
Heavy-duty mechanical seals, high-temperature bearings, and specialized impeller metallurgy engineered for continuous 80–180 °C duty.
Simultaneous peak condensate mass flow rate (t/h) from all steam users.
Design operating return temperature (up to 150 °C std / 180 °C upgraded).
Deaerator or boiler feedwater tank elevation and operating backpressure.
Receiver material (Q235-B / SS304 / SS316L) and conductivity dump logic.
YONGFAN engineers will calculate receiver surge buffering, select high-temp pump head, and provide certified GA submittal drawings.
Longitudinally submerged-arc welded pressure receiver with visual, radiographic NDT, and serial traceability.
Receiver shell and suction interfaces tested at 1.5× working pressure for 30 minutes with zero leakage.
Operated on a calibrated hot-water test loop simulating near-saturation conditions to verify cavitation-free pumping.
Automated level cut-in/cut-out, dry-run safety cutoffs, and Modbus RTU data points verified before crating.
Ten standard models run from JFLN-1 to JFLN-100, corresponding approximately to 1–100 t/h nominal recovery capacity.
Standard JFLN units handle up to 150 °C. Upgraded configurations handle up to 180 °C with specialized mechanical seals and pump metallurgy.
No. Steam traps remain upstream at each process heat exchanger. JFLN collects the discharged liquid and pumps it toward the boiler feed tank.
Always size from peak condensate flow. The receiver buffers short surges, but pump-out capacity must prevent tank overflow.
Yes. Multiple return lines can connect to one receiver header provided all stream temperatures and peak flows are coordinated.
Specify upstream strainers and conductivity-triggered reject dump valves to divert off-spec condensate before it enters the boiler return line.
Do not attempt to replace defective steam traps with a condensate recovery skid; traps must maintain steam seal.
Do not size from daily average tonnage when batch autoclaves or dryers dump large short-term condensate surges.
Do not assume standard water pumps can handle near-saturation condensate; verify anti-cavitation suction geometry.
Do not return suspect industrial process condensate to boilers without automated conductivity monitoring.
Send your peak condensate flow rate, return temperature, and boiler feed tank backpressure. YONGFAN application engineers will verify receiver surge volume, high-temp pump head, and provide certified submittal drawings.
